Follow these easy steps to create your Mixed Berry Trifle:

1. Prepare the Berries: Wash the mixed berries thoroughly. If using strawberries, hull and slice them. Set aside to dry.

2. Make the Cream Mixture: In a mixing bowl, whip the heavy cream until it forms soft peaks. Add the mascarpone cheese, powdered sugar, and vanilla extract, folding gently until everything is well combined.

3. Cut the Sponge Cake: Slice the sponge cake into cubes (about 1-inch pieces).

4. Layer Ingredients: Begin layering the trifle in a large glass bowl or individual glasses:
– Start with a layer of sponge cake at the bottom.
– Follow with a layer of the cream mixture.
– Add a layer of mixed berries.

5. Repeat Layers: Continue to alternate layers of cake, cream, and berries until you reach the top of the container. Aim for at least five layers.

6. Chill the Trifle: Cover the trifle with plastic wrap and refrigerate for at least 30 minutes. This allows the flavors to meld beautifully.

7. Garnish and Serve: Before serving, garnish the top with a few extra berries and fresh mint leaves for a pop of color.

8. Serve Chilled: Use a large spoon to scoop out servings of your Mixed Berry Trifle.

These steps will guide you in creating this incredible dessert effortlessly. Once assembled, your trifle is ready to impress!